``Geithner's fear is that the vigorous enforcement of the law against the systemically dangerous institutions (SDIs) that caused the crisis could destabilize the system and cause a renewed global crisis. I have often expressed my view that the theory that leaving felons in power over our largest financial institutions is essential to producing financial stability is insane. Geithner, it turns out, is very sensitive to that criticism. I will return to that subject after setting the stage.''